Dressing-tool



W. E. RUSS.

DRESSING TOOL.

APPLICATION FILED MAY I3, I9I9.

1,348, 823. Patented Aug. 3, 1920.

UNITED STATES PATENT OFFICE.

WILLIAME. ROSS,-0F CLEVELAND, OHIO, ASSIGNOR TC THEIROSS MANUFACTURINGv COMPANY, OF` CLEVELAND, OHIO, A. CORPORATION.` OF-OHIO.;

DRESSING-Toon. y

Specification o f Letters Patent. Patented kAllg. 34.1920.'

Application filed May 13, 1919.? Serial No. 296,899.

T 0 all wit-0m it may concern:

Be it known that I, WILLIAM E. Ross, a citizen of the United States, and resident of Gleveland,fcounty of Cuyahoga, and State of Ohio, have invented new and useful Improvements in Dressing-Tools, of which the following is a speciiicatiointhe principle of the invention being herein explained and the .bestinode in which I have contemplated tably mounting' the dressing .element in av supporting member, and improvementsiin various detailed features ot the mounting itself. 1 I

The annexed dravvingand the following. description-set forth .in detail-.certain means embodying my; invention, the. disclosed:V means, however, constituting but onefof the.v

various mechanical forms in which the principle ofthe invention maybe employed.-

Insaid annexeddrawing: F igure, l represents a sideyelevation of my improved tool;

F ig.y 2 representsa plan View, approtecting Vhood of `the lsupporting member. being broken away;

Fig. 3 .represents av vertical ,longitudinal sectioin'talilen inthe Vplaneindicated by the I edges of the comparatively hardV bushing -cuttingtheir Way through the inner surfaces lines.III-III, Fig. 2; c

Fig. 4 represents a vertical transversesection, taken Vin. the. plane indicated byl the line IV+IV, Fig. 2;

Figs. 5 fand ,6 represent, respectively, face and side views of a dressing element;

Fig., 7 represents-a perspective view of a rotatable-spindle; n

Fig. 8 `represents a perspective vievvr of av lock nut disposed internallyof they support- Referringto the yannexed dra-Wing, the,`

dressing member proper entering; into my improved tool'consists of a plurality of thin yfiat disks l provided with spaced teeth 2, of

substantially the design Aand construction plainly shown in'Figs. 5 and-6.. The dressing member comprised of this plurality of elements lis directly supported-upon a cylindrica-l-'eore orspool 3 of'soft steel, the ends ot' said spool 3 being upset to form binding Hanges 3 betweenwhich the plurality ot' elements l is rigidlyconfined, suitable Washers 4 being disposedatthe ends between the outermost elements l, respectively, and the adjacentlanges 3. The several disks l are so positioned upon thespool 3 that the edges of. the teeth 2' are disposed spirally across the face'of` the dressing member, the exactv and proper positionA of each ofY the disks l being secured by tappingtlie teeth 2 thereof,

with a suitable hammer or other tool, after the element has been placed over the spool '3 and before finally and completelyupsetting the ends of saidspool into the flanges Y 3. The spool 3 is further directly connected to an internally disposed cylindrical shell or bushing 5 of comparatively hard steel .said

- bushing being formed with a seriesot 101i-,y

gitudinally disposed splines 6, as `plainly shown in Figflo. The external kdiameter of the busliing isslightly greater than the. internal diameter ofthe spool 3 and said bushing is fitted Within said spool by driving the same therein, thebushing 5 slightly expanding'the--soft shell 3 andV the splined of the comparatively soft metal of Which the spool 3 lis comprised. The-resultis plainly shown iii-Figs. 3 land 4. TWO shoulders 7 are formed upon one.Y end of the bushing 5 for a purposehereinafter fully explained.

' The-construction so farl explained results'in a complete and unitaryy assembly of the' dressing element. It 4is-now necessary to secure this i element to ra suitable rotatablespindle, and provide suitable bearings in a suitable supporting member for said rota'- table.- spindle. This construction Will .now be explained vin detail..

Thev spindle is designated by the ordinal 8 provided withv threaded end portionsI 9- and 10.-. Said spindle `.is .also provided intermediately otitsendsand tov one side of thecenter thereof1 with va shoulder -11 Vformed with depressions 12,y adapted `to interlock with the shoulders 7 of the bushing 5, whereby relative movement of said bushing along the spindle 8 in one direction is prevented and the said bushing 5 is secured to said rotatable spindle 8. The spindle 8 is also provided with a threaded portion 13 inter# mediately of its ends and disposed upon that side ofthe center thereof opposite to the side upon which the shoulder 11 is formed. By means of an internally disposed nut 18 adapted to coperate with the threaded poi'- tion 13, and of the design plainly shown in Fig. 8, the relative longitudinal movement of the bushing 5 and the spindle 8 in the other direction, is prevented. This assembly is plainly shown in Fig. 4 and the manner in which such assembly is secured will now be explained in detail. y

Assuming that the unitarydressing member has been assembled in the manner here" inbetore explained, the same is inserted between the arms 16 of a yoke-shaped membei' 'forming the main support, adapted to be secured to a suitable handle 15, and formed with ya protecting hood 17. yWhen said dressing element is inserted between the arms 16, the knut 1S'is lying loosely in a. shallow cavity 18 formed intermediately ol` one end ot the bushing 5 and the adjacent flange 3 .of the spool 3.. The end 9 ot the spindleB is inserted through the Yenlarged hole 17, of one arm 16 and the spindle passed through the central kaperture of the bushing 5 until the shoulders 7 and slots 12 are interlocked,l the end 9 having meanwhile passed through the nut 18 vandinto the comparatively small hole 172 'of the other yoke arm 16. A suitable wrench is then .inserted down between the dressing member and the last-mentioned yoke arm 16 and the nut 18 tightened upon the thread 13 untilthe dressing member iis drawn over toward said yoke arm 16xand suitably centralized between the two arms 16. The spindle portion 13 is fformed with a suitable cotter pin hole 14 and the nut 18 with corresponding hole 14 so that the nut 18 can be secured in position by a suitableV cotter pin, asy plainly shown in Figs. 2 and 4.

The bearings for the rotatable spindle 8, the means of adjusting, and the means for securing, the spindle in the supporting member, will nowfbe described in detail.' Suitablelfeltjwashers 20 are .positioned inthe holes 17, vand 172 adjacent the shoulder 11 and the contiguous portion ofone of the yoke arms 16, respectively, as plainly shown in Fig. 4. The yokev arms 16 are respec` tively provided with bearing members 1.73 and journaled therein are suitable ball bearing elements 21 formed With bearing surfaces for the respective vends of the spindle 8. Said bearings 21 are held to position by plate washers 23'rigidly secured by means of nuts 22 internally threaded to coperatieV with the threaded end portions9 and 10 of the spindle 8. In addition to securely po- Y.

sitioniiig the spindle 8 within the supporting member, saidv nuts 22 lprovide' means for effecting adjustment of the rotating element i Y poi-ting member; and means for securing said dressing element t0 said` spindle so that the same may rotate together, said means 1.

comprising outer and inner cylinders respectively secured to said element and said spindle, theexterior diameter of said inner.

shell being somewhat greater than the iiite-V Vrior diameter of said outer shell, saidshells being driven one Within the other.

2. A dressing tool comprising, adressing element; a rotatable spindle; a supportingl member' provided with` spindle bearings;; means `for securing said spindle in said supporting member; .and means for'V securing* said dressing element to said spindle so that the same may rotate together, said .means comprising soft metal andl comparatively hard metal cylinders secured oneto .said ele. ment and one to said spindle, the inner.

diameter of one shell being somewhat smaller. than the exterior diameter of `the,

other shell, said shells being driven onewithin the other.

3. A dressing tool comprising, a dressing element; a rotatable spindle.; a supporting member provided with spindle bearings; means for securing said spindle in said sup` porting member; and means fori securing-` said. dressing element to saidy spindle so that the same may rotate together, said means comprising soft metal and comparatively hardv metal cylinders secured one to'said ele` v ment and one to said spindle, the inner diameter of one shell being somewhat smaller than the exterior diameter of the other shell, said shells being driven one within theother, the contacting surface of vthe hard` metal shell being formed with cutting splines. l y

4. A- dressing tool comprising, a Vdressing element; a rotatable spindle; 'a supporting" member provided with spindle bearings;

means for securing said spindle inV said supc comprising a soft metal spool to the exterior of which said element is 'secured and a `coniparatively hard metal bushing secured to said spindle and formed with exteriorVA`V splines adapted to be drivenlintothe inner'v vsurface of saidspool.

5. A 'dressing tool comprising, afdressing l' element; a rotatable spindle; a supporting member provided With spindle bearings means for securing said spindle in said supporting member; and means for securing said dressing element to said spindle so that the same may rotate together, said means including a spindle bushing secured to said element and formed with a shouldered end portion, a shouldered portion formedupon said spindle and adapted to engage with the shouldered portion of said bushing, a threaded portion upon said spindle, disposed adj acently the other end of said bushing, and a coperating internally threaded member adapted t bear against said lastnamed bushing end.

G. A dressing toolV comprising, a dressing element; a rotatable spindle; a supporting member provided with spindle bearings; means for adjustably securing said spindle in said supporting member; and means for securing said dressing element to said spindie so that the same may rotate together, said means including a spindle bushing secured to and interiorly of said element land .formed with a plurality of shoulders; shoulders 'formed upon said spindle and adapted to engage with the shoulders of said bushing; and means for securing said bushing longitudinally relatively to said bushing.

7. A dressing tool comprising, a dressing element; a rotatable spindle; a supporting member provided with. spindle bearings; means for securing said spindle in said sup- Vporting member; and means'ior securing said dressing element to said spindle so that the same may rotate together, said means comprising outer and inner cylinders respectively secured to said element and said spindle, the exterior diameter of said inner cylinder being somewhat greater than the interior diameter of said outer cylinder, and means for expanding said outer cylinder to receive and be securely fastened to said yinner cylinder.

8. A dressing tool comprising, a dressing element; a rotatable spindle; a supporting member provided with spindle bearings; means for adjustably securing said spindle in said supporting member; means for securing said dressing element to said spindle so that the same may rotate together, said means comprising outer and inner cylinders respectively secured t0 said element and said spindle, the means securing together said spindle and inner cylinder comprising coperating shoulders formed upon said cylinder and spindle, and means ixing said cylinder against longitudinal movement, relatively to said spindle; the exterior diameter of said inner cylinder being somewhat greater than the interior diameter' of said outer cylinder; and means for expanding said outer cylinder to receive and be securely fastened t0 said inner cylinder.

Signed by me this 3rd day of May, 1919.

WILLIAM E. ROSS. 

